| 摘要 |
The present invention include systems, equipment, software, and protocols that enable a sender to select an audible sound, such as an audio security feature or ringtone to be played by a target recipient for the purpose of identifying and/or authenticating the sender, or to enable access to a secured network, or to play a user selected audible sound on a target device. The target recipient can identify the sender by listening to the audible sound, or by analyzing the audible sound with software. This can either allow the target recipient for authenticating access to a controlled area such as a secured network controlled by the target recipient.
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